0);

var tot_pop = 0;

for(var i=0; i < num_rows; i++){ 
tot_pop = tot_pop+data[i];
                         };

tot_pop=Math.round(tot_pop/1000.0);
tot_pop=tot_pop*1000;

function addSeparatorsNF(nStr, inD, outD, sep)
{
	nStr += '';
	var dpos = nStr.indexOf(inD);
	var nStrEnd = '';
	if (dpos != -1) {
		nStrEnd = outD + nStr.substring(dpos + 1, nStr.length);
		nStr = nStr.substring(0, dpos);
	}
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(nStr)) {
		nStr = nStr.replace(rgx, '$1' + sep + '$2');
	}
	return nStr + nStrEnd;
}



document.getElementById('result').innerHTML=addSeparatorsNF(tot_pop, '.', '.', ',');
</script>


</body>
</html>